Many of these are only imperfectly known, there being yet much to learn about their earlier stages.
The Netted Pug flies in May and June, and is to be found in most parts of Great Britain. Its fore wings are brownish grey, crossed by two zigzag light bands, both of which are bordered with black, and divided throughout by a fine dark line. There are also other dark lines, both transverse and longitudinal, arranged as here represented.
The caterpillar feeds during July inside the seed capsules of campions (Silene Cucubalis, S. maritima, S. acaulis, and Lychnis diurna) and catchfly (Silene gallica and S. nutans).
The Narrow-winged Pug (Eupithecia nanata)
Early in May, and frequently in April, this pretty little moth may be seen flying about at dusk among the heather on our moors. It is one of the first Pugs of the season, and is widely distributed, and very common in some localities.
Its wings are dark grey, and marked with several transverse wavy light lines. The fringe is dark grey, spotted with white.